Agreed. The simple RCBS tool I use is ... well... adequate. But it works as often as I need it.....and it measures neck thickness as well.
I like your video.....easily a thousand words.
The following I just edited....realizing what I wrote first didn't make sense....
The last time I was down that "rabbit hole" mentioned above, I discovered something else interesting, concerning sizers with expander/distorters inside and LC brass.
After polishing the hell out of the expander ball, I discovered that sizing typically .004" out LC 762 cases, might result in the case being minimally improved to .003" out.
Yet turning the case a third and resizing, improved it more, resulting typically .002", then turning the case another third in the shell holder, and resizing a third time almost always brought it to .001! Yeah, nearly every time. This was MG brass!
I believe someone mentioned, ".0005 a side" ?
Though work hardening the brass in the neck two more times
isn't exactly a sane positive use of time, I was curious.
I was surprised that it
does straighten crooked brass pretty darn well. And one can always anneal it, something worthwhile for that MG brass anyway, and have good, straight brass.........cheap.